Character recognition apparatus using modification of a characte

Details Character recognition apparatus using modification of a characte Character recognition apparatus using modification of a characte

1994-08-23

1997-04-29

Couso, Jose L.

Image analysis

Pattern recognition

Template matching

G06K 962

Patent

active

056257104

ABSTRACT:
A character recognition apparatus for detecting a character which is represented by an image data, by extracting a characteristic quantity of the character from the image data of the character, and comparing the characteristic quantity with characteristic quantities of characters which are memorized in a dictionary. Before the above comparison, a modification of the above characteristic quantity which is extracted from the image data is carried out, where the modification corresponds to a magnification or reduction of the scale of the above image data to equalize the scale of of the above image data of the character with the scales of the characters of which the characteristic quantities are memorized in the above dictionary. Further, a magnification or reduction of the width of the character image to equalize the width of of the character image with the width of the characters of which the characteristic quantities are memorized in the above dictionary.

REFERENCES:
patent: 3967243 (1976-06-01), Kawa
patent: 4136332 (1979-01-01), Kadota et al.
patent: 4155072 (1979-05-01), Kawa
patent: 4284975 (1981-08-01), Odaka
patent: 4601054 (1986-07-01), Watari et al.
patent: 4606069 (1986-08-01), Johnsen
patent: 4628532 (1986-12-01), Stone et al.
patent: 4641355 (1987-02-01), Hongo et al.
patent: 4701961 (1987-10-01), Hongo
patent: 4757551 (1988-07-01), Kobayashi et al.
patent: 4769851 (1988-09-01), Nishijima et al.
patent: 4833721 (1989-05-01), Okutomi et al.
patent: 4837842 (1989-06-01), Holt
patent: 4887303 (1989-12-01), Hongo
patent: 4977603 (1990-12-01), Irie et al.
I. Masuda et al., Proceedings IEEE Conference on Computer Vision and Pattern Recognition, `Approach to Smart Document Reader System`, 19-23 Jun. 1985, San Francisco, US, pp. 550-557.
Systems, Computers, Controls, vol. 10, No. 2, Mar.-Apr. 1979, Silver Spring, US, pp. 29-38, M. Yasuda, "An Improved Correlation Method For Character Recognition".
T.Y. Young & K.-S. FU (Eds.) `Handbook of Pattern Recognition and Image Processing` 1986, Academic Press, San Diego, US, Chapter 23. C.Y. Suen: "Character Recognition by Computer and Applications", pp. 569-586, p. 573, paragraph III--p. 575, paragraph IV; tables II,III idem.
T.Y. Young & K.-S. FU (Eds.) `Handbook of Pattern Recognition and Image Processing` 1986, Academic Press, San Diego, US, Chapter 3, J. Kittler: "Feature Selection and Extraction", pp. 60-83, p. 68, paragraph E--p. 69 idem.

Affiliated with

Also associated with

Rating

Character recognition apparatus using modification of a characte does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Character recognition apparatus using modification of a characte, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Character recognition apparatus using modification of a characte will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-712676